feat(soobing): week1 > two-sum

Author: soobing

two-sum/soobing2.ts

@@ -0,0 +1,15 @@
+function twoSum(nums: number[], target: number): number[] {
+  const map = new Map();
+  for (let i = 0; i < nums.length; i++) {
+    map.set(nums[i], i);
+  }
+
+  for (let i = 0; i < nums.length; i++) {
+    const index = map.get(target - nums[i]);
+    if (i === index || index === undefined) continue;
+
+    return [i, index];
+  }
+
+  return [];
+}